fix: should not list as a dependency of itself.

setup.py

@@ -31,7 +31,7 @@
 
 if __name__ == "__main__":
     requirements = open("requirements.txt").readlines()
-    requirements = [r.strip() for r in requirements]
+    requirements = [r.strip() for r in requirements if not r.startswith("torchquantum")]
 
     setup(
         name="torchquantum",